用的是阿里云的.net 版的SDK，发现上传文件很慢（不到1M的文件用了近三秒）不知道有没有什么解决方案。

 var stopwatch = System.Diagnostics.Stopwatch.StartNew();

            var client = new OssClient("oss-cn-hangzhou.aliyuncs.com", "id", "key");
            try
            {
                var result = client.PutObject("bucketName", key, fileToUpload);
                stopwatch.Stop();
                Console.WriteLine(stopwatch.ElapsedMilliseconds);
                Console.WriteLine("Put object succeeded");
                Console.WriteLine("ETag:{0}", result.ETag);
            }
            catch (Exception ex)
            {
                Console.WriteLine("Put object failed, {0}", ex.Message);
            }

输出结果：